Police in South Korea have raided the offices of Samsung Electronics' display manufacturing arm. The raid was made in conjunction with a police investigation into allegations of technology used in OLED panel manufacturing.

Authorities say that the investigation is seeking information on whether partners of rival display maker LG Display Co. leaked technology secrets to competitors and whether or not Samsung was involved.

Both Samsung and LG have been involved in criminal probes after allegations of criminal activity surfaced last year. In July 2012, six LG Display employees were charged with stealing OLED technology from Samsung.

LG Display maintains that it did not report Samsung to the police to kick off the current investigation.

Competition in the OLED market is fierce as consumer demand for TVs and other electronics products using the technology is expected to grow significantly. OLED TVs are expected to be one of the biggest growth segments in the industry over the next several years.